Trolley.



Patented Aug. I5, 1899.

H. HIRSDHMAN.

T R 0 L L E Y.

(Application filed Mar. 29, 1 899.)

(No Model.)

- FIGl.

N VE N 705 A 770/?NEYS.

7m: NORRIS PETERS co. Pndrauma. wnsumsmfl. n. c.

I UNITED STATES PATENT OFFICE.

HERBERT IIIRSCHMAN, OF SALT LAKE CITY, UTAH.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 631,165, dated August15, 1899.

Application filed March 29, 1899. Serial No. 710,962. (No model.)

To all whom, it may concern: Be it known that I, HERBERT HIRSCHMAN, ofSalt Lake City, in the county of Salt Lake and State ofUta-h, haveinvented a new and Improved Trolley Attachment, of which the followingis a full,clear, and exact description.

The object of the invention is to provide a simple and durableattachment for trolleywheels that will effectually prevent such wheelsfrom slipping off or jumping off the wire and yet allow said wheels tofreely pass all obstructions-such as the switches that connect thewires, also the wire connections from cross-bars or poles or any othersupport for the wire-and no matter how swiftly the car may be moving.

A further object of the invention is to so construct the attachment thatit will in no manner interfere with the motionor mechanism of the car. Y

The'invention consists in the novel 0011-. struction and combination ofthe several parts, as will be hereinafter fully set forth, and pointedout in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures. 3

Figure 1 is a side elevation of-the improved device. Fig. 2 is a planview of the same;

and Fig. 3 is a transverse section through one of the members of thetrolley-wheel fork, the standard connected with said member, and aspring connected with the standard.

The trolley-wheel A is provided with the usual peripheral groove and ismounted to turn in the usual way between the members 10 of a fork B, thebase 11 of the fork being adapted for attachment to the end of atrolley-pole O, and D represents'a wire with which the trolley is toengage.

A standard 12 is connected with each member 10 of the fork B, and at theupper end of each standard a pin or cylindrical section 13.

is formed. The standards are preferably construeted of spring metal, andthe bottom portion of each standard is provided at its inner face with alongitudinal groove 12*, as shown in Fig. 3. At the inner edge of thelowerportion of each standard a wing 14 is constructed, and these wingsare bent over the side edges of the members 10 of the fork to an engage--the medium of springs 19.

outer ends of the members of the fork to a point beyond the periphery ofthe trolleywheel.

A guard-finger 17 is pivoted at the upper end of each standard 12. Theseguard-fingers normally extend in direction of each other and over theperiphery of thetrolleywheel. Each of the guard-fingers is provided witha longitudinal recess 18 at its inner end, the recess in one fingerbeing made at the bottom portion thereof and the recess in the otherfinger being made in the top portion of the same, and the fingers are ofsuch length that their recessed inner ends overlap, as is clearly shownin Fig. 2. The fingers are held in their normal positionnamely, crossingthe trolley-wheeland are returned to such position when disturbed andreleased through These springs are preferably coil-springs, and theirupper ends are secured to the outer end members of the guard-fingers,while their lower ends are secured to'the standards by the screws orbolts 15. These springs therefore are practically opposite the outerlongitudinal edges of the As soon as an obstruction is met theguardfingers will separate laterallyin-either direction, placing thesprings 19 under tension, and as soon as the obstruction is passed thefingers will be returned by the springs to their normal positiontransversely of the trolley-wheel. While the guard-fingers are capableof lateral movement, they are held against vertical movement. When theguardfingers are employed, the rope 20is bifurcated at the top, and onestrand of the rope is attached to each of the guard-fingersrespectively. Thus when the trolley-Wheel is to be placed in engagementwith 'a. wire or is to be removed from such engagement by drawingdownward on the rope 20 the guard-fingers are separated, permitting thewire to be carried standards 12, as shown in both Figs. 1 and2.

to or from the trolley-wheel, and at the same time the trolley-pole maybe drawn downward as far as necessary.

It will be observed that the members of the fork are attached to thestandards in a removable manner, and it is evident that theguard-fingers may be readily disconnected from the standards and thatthe springs may be disconnected from both the standards and theguard-fingers. Thus should anypart become broken or seriously injured itmay be conveniently replaced by a perfect part.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination with a trolley-wheel and itssupport, of guard-fingers each pivotally mounted between its ends abovesaid wheel and extending transversely over a portion of the wheel, theinner ends of said guard fingers normally overlapping, and springsconnected with the outer ends of said fingers and with a fixed support,the said fingers being capable of lateral movement and held againstvertical movement, as described.

2. A trolley-wheel, a fork in which the trolley-wheel is mounted toturn, a standard attached to each member of the fork and extendingapproximately parallel therewith, the said standards projecting beyondthe outer ends of the members to a point beyond the periphery of thetrolley-wheel, a guard-finger pivoted between its ends at the upper endof each standard whereby the fingers have lateral movement, the innerends of said guardfingers extending normally in direction of each otherand across the upper portion of the trolley-wheel and springs arrangedat the outer edges of the standards extending approximately parallelwith the standards and members of the fork and secured at their upperends to the outer end members of the fingers, and at theirlower ends tothe said standards, as set forth.

3. The combination with a trolley-wheel and its fork, of guide-standardsattached to the members of the fork and extending at each side of thetrolley-wheel beyond its periphery, guard fingers pivoted between theirends upon the upper ends of said standards and extending inward towardeach other, the guardfingers being arranged to interlock at their innerends, and capable of lateral movement but held against verticalmovement, springs connected with the outer ends of the guardfingers andwith a fixed support, said springs serving to normally maintain theguard-fingers in position over the trolley-wheel, being likewise adaptedto return said fingers to such position when an obstruction has beenpassed, as specified.

4. The combination, with a fork and a trolley-wheel mounted in the saidfork, of astandard attached to each member of the fork,

which standards extend at each side of the trolley-wheel beyond theperiphery thereof, a guard-finger pivoted upon the upper end of eachstandard, the guard-fingers having their inner ends recessed at oppositefaces, the recessed portions of said guard-fingers being arrangedto'overlap, and springs attached to the outer ends of the guard-fingersand to the said standards, for the purpose described.

5. The combination with a trolley-wheel and its fork, of standardsconstructed of spring material, the said standards having at their lowerportions wings formed with grooves in which the members of the fork arefitted, means for firmly securing the standards to the forks, andspring-controlled guard-fingers carried by the standards and extendingover a portion of the trolley-wheel, substantially as set forth.

6. The combination with a trolley-wheel, and the fork in which saidwheel is mounted, of standards having their lower portions constructedto engage and fit upon the members of the fork, the said standardsextending at each side of the trolley-wheel beyond the peripherythereof, and each having at its upper end a pin or cylindrical section,a guard-finger mounted to turn on the said upper end of each standard,the inner ends of the guardfingers extending normally in direction ofeach other and over the periphery of the trolley-wheel, coil-springssecured at their upper ends to the outer ends of the guard-fingers, andscrews or bolts securing the lower ends of said springs to thestandards, the said screws or bolts also serving to secure the standardsin place on the members of the fork, substantially as described.

HERBERT HIRSOIIMAN.

Witnesses:

GEo. W. TIMPSON, GEO. E. DYER.

